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I tried to set up a simple u32 filter and tried to use this
filter to classify traffic to a (bounded,isolated) 2Mbit class. However, it does
not work. I still get the full (~8Mbps on a 10 Mbps eth0) bw. I have trid with
and without "split 1:0" and have tried to paly with weights without any success.
Basically my filter is not working. (RH 6.1, kernel 2.2.12).
Any hints welcome.
Gautam
-------------- commands used to set things up
-------------------
tc qdisc add dev eth0 root handle 1: cbq bandwidth 10Mbit cell 8 avpkt 1000 mpu 64 // no root class 1:1 needs to be set up, as far as I can tell. Setting up // qdisc automatically sets up parent class 1:0 with all BW. tc class add dev eth0 parent 1:0 classid 1:2 cbq bandwidth 10Mbit rate 2Mbit bounded isolated allot 1514 cell 8 weight 2Mbit prio 3 maxburst 20 avpkt 1000 split 1:0 tc class add dev eth0 parent 1:0 classid 1:3 cbq bandwidth 10Mbit rate 7Mbit bounded isolated allot 1514 cell 8 weight 7Mbit prio 7 maxburst 20 avpkt 1000 split 1:0 tc filter add dev eth0 parent 1:0 prio 3 protocol ip u32 tc filter add dev eth0 parent 1:0 prio 3 handle 1: u32 divisor 256 tc filter add dev eth0 parent 1:0 prio 3 handle 2: u32 divisor 256 // GHT Note: I am not yet using this 2nd u32 filter // match tcp traffic foing to 192.168.1.3, port 5000. tc filter add dev eth0 parent 1:0 prio 3 u32 ht 1:6: match ip dst 192.168.1.3 match tcp dst 0x1388 0xffff flowid 1:2
------------------------------------------- output of "show state" commands to tc (for qdisc, class and filter states) qdisc cbq 1: rate 10Mbit (bounded,isolated) prio no-transmit Sent 51083398 bytes 39708 pkts (dropped 0, overlimits 0) // this count keeps going up. backlog 3p borrowed 0 overactions 0 avgidle 624 undertime 0 class cbq 1: root rate 10Mbit (bounded,isolated) prio no-transmit Sent 51083398 bytes 39708 pkts (dropped 0, overlimits 0) borrowed 0 overactions 0 avgidle 552 undertime 0 class cbq 1:2 parent 1: rate 2Mbit (bounded,isolated) prio 3 // no traffic gets classified to this handle. Sent 0 bytes 0 pkts (dropped 0, overlimits 0) borrowed 0 overactions 0 avgidle 70957 undertime 0 class cbq 1:3 parent 1: rate 7Mbit (bounded,isolated) prio 7 Sent 0 bytes 0 pkts (dropped 0, overlimits 0) borrowed 0 overactions 0 avgidle 7602 undertime 0 filter parent 1: protocol ip pref 3 u32 filter parent 1: protocol ip pref 3 u32 fh 2: ht divisor 256 filter parent 1: protocol ip pref 3 u32 fh 1: ht divisor 256 filter parent 1: protocol ip pref 3 u32 fh 1:6:800 order 2048 key ht 1 bkt 6 flowid 1:2 match c0a80103/ffffffff at 16 match 00001388/0000ffff at nexthdr+0 filter parent 1: protocol ip pref 3 u32 fh 800: ht divisor 1 |
